Search

Frederick F. Krass

Supervisory Patent Examiner (ID: 1957, Phone: (571)272-0580 , Office: P/1612 )

Most Active Art Unit
1614
Art Unit(s)
1614, 1503, 1612, 2899, 1501
Total Applications
2178
Issued Applications
1357
Pending Applications
298
Abandoned Applications
523

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 14336795 [patent_doc_number] => 20190150370 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-23 [patent_title] => Method and system for electromagnetic fluid treatment utilizing frequencies and harmonics [patent_app_type] => utility [patent_app_number] => 16/174283 [patent_app_country] => US [patent_app_date] => 2018-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8289 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 55 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16174283 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/174283
Method and system for electromagnetic fluid treatment utilizing frequencies and harmonics Oct 29, 2018 Abandoned
Array ( [id] => 14230135 [patent_doc_number] => 20190127240 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-02 [patent_title] => Method and system for electromagnetic fluid treatment utilizing frequencies and harmonics [patent_app_type] => utility [patent_app_number] => 16/174286 [patent_app_country] => US [patent_app_date] => 2018-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7260 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 56 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16174286 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/174286
Method and system for electromagnetic fluid treatment utilizing frequencies and harmonics Oct 29, 2018 Abandoned
Array ( [id] => 14183509 [patent_doc_number] => 20190111459 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-04-18 [patent_title] => ALTERNATING MAGNETIC FIELD SYSTEMS AND METHODS FOR GENERATING NANOBUBBLES [patent_app_type] => utility [patent_app_number] => 16/160875 [patent_app_country] => US [patent_app_date] => 2018-10-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5083 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16160875 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/160875
ALTERNATING MAGNETIC FIELD SYSTEMS AND METHODS FOR GENERATING NANOBUBBLES Oct 14, 2018 Abandoned
Array ( [id] => 15913523 [patent_doc_number] => 10653984 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-05-19 [patent_title] => Water purifying apparatus and filter structure [patent_app_type] => utility [patent_app_number] => 16/154533 [patent_app_country] => US [patent_app_date] => 2018-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 26 [patent_figures_cnt] => 26 [patent_no_of_words] => 15764 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16154533 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/154533
Water purifying apparatus and filter structure Oct 7, 2018 Issued
Array ( [id] => 17192331 [patent_doc_number] => 11161066 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-11-02 [patent_title] => Micro-machined filter for magnetic particles [patent_app_type] => utility [patent_app_number] => 16/129849 [patent_app_country] => US [patent_app_date] => 2018-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5295 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16129849 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/129849
Micro-machined filter for magnetic particles Sep 12, 2018 Issued
Array ( [id] => 14662775 [patent_doc_number] => 10369264 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-08-06 [patent_title] => Apparatus for removing chemotherapy compounds from blood [patent_app_type] => utility [patent_app_number] => 16/127008 [patent_app_country] => US [patent_app_date] => 2018-09-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 9100 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16127008 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/127008
Apparatus for removing chemotherapy compounds from blood Sep 9, 2018 Issued
Array ( [id] => 17512838 [patent_doc_number] => 11291958 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-04-05 [patent_title] => Use of extended surfactants in process membrane cleaning [patent_app_type] => utility [patent_app_number] => 16/122418 [patent_app_country] => US [patent_app_date] => 2018-09-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 11 [patent_no_of_words] => 21640 [patent_no_of_claims] => 36 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16122418 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/122418
Use of extended surfactants in process membrane cleaning Sep 4, 2018 Issued
Array ( [id] => 13983277 [patent_doc_number] => 20190060796 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-02-28 [patent_title] => CENTRIFUGAL FILTER [patent_app_type] => utility [patent_app_number] => 16/119936 [patent_app_country] => US [patent_app_date] => 2018-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1743 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16119936 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/119936
CENTRIFUGAL FILTER Aug 30, 2018 Abandoned
Array ( [id] => 13730521 [patent_doc_number] => 20180369728 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-12-27 [patent_title] => WATER PURIFYING APPARATUS AND FILTER STRUCTURE [patent_app_type] => utility [patent_app_number] => 16/116759 [patent_app_country] => US [patent_app_date] => 2018-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15746 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16116759 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/116759
Water purifying apparatus and filter structure Aug 28, 2018 Issued
Array ( [id] => 13619467 [patent_doc_number] => 20180361285 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-12-20 [patent_title] => WATER PURIFYING APPARATUS AND FILTER STRUCTURE [patent_app_type] => utility [patent_app_number] => 16/115380 [patent_app_country] => US [patent_app_date] => 2018-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15749 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 179 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16115380 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/115380
Water purifying apparatus and filter structure Aug 27, 2018 Issued
Array ( [id] => 16806604 [patent_doc_number] => 20210129157 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-05-06 [patent_title] => METHOD AND DEVICE FOR THE CHIP-REMOVING PRODUCTION OR MACHINING OF A WORKPIECE WITH SUBSEQUENT CHIP DISCHARGE [patent_app_type] => utility [patent_app_number] => 16/639635 [patent_app_country] => US [patent_app_date] => 2018-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5580 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16639635 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/639635
Method and device for the chip-removing production or machining of a workpiece with subsequent chip discharge Aug 21, 2018 Issued
Array ( [id] => 16170036 [patent_doc_number] => 10711589 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-07-14 [patent_title] => Sand separator [patent_app_type] => utility [patent_app_number] => 16/058672 [patent_app_country] => US [patent_app_date] => 2018-08-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 3592 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 284 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16058672 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/058672
Sand separator Aug 7, 2018 Issued
Array ( [id] => 15961273 [patent_doc_number] => 20200164388 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-28 [patent_title] => UNIFLOW CYCLONE SEPARATOR [patent_app_type] => utility [patent_app_number] => 16/636360 [patent_app_country] => US [patent_app_date] => 2018-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9563 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 57 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16636360 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/636360
Uniflow cyclone separator Aug 2, 2018 Issued
Array ( [id] => 13606547 [patent_doc_number] => 20180354822 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-12-13 [patent_title] => SYSTEMS AND METHODS FOR CONTROLLING EVAPORATIVE FLUID LOSS [patent_app_type] => utility [patent_app_number] => 16/054955 [patent_app_country] => US [patent_app_date] => 2018-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9724 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16054955 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/054955
Systems and methods for controlling evaporative fluid loss Aug 2, 2018 Issued
Array ( [id] => 13578297 [patent_doc_number] => 20180340697 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-11-29 [patent_title] => CONNECTION ASSEMBLY [patent_app_type] => utility [patent_app_number] => 16/053379 [patent_app_country] => US [patent_app_date] => 2018-08-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4768 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 49 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16053379 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/053379
Connection assembly Aug 1, 2018 Issued
Array ( [id] => 13763151 [patent_doc_number] => 10173910 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-01-08 [patent_title] => Wastewater treatment system and method [patent_app_type] => utility [patent_app_number] => 16/051307 [patent_app_country] => US [patent_app_date] => 2018-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 4890 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16051307 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/051307
Wastewater treatment system and method Jul 30, 2018 Issued
Array ( [id] => 14818945 [patent_doc_number] => 10406458 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2019-09-10 [patent_title] => Regenerative media filtration [patent_app_type] => utility [patent_app_number] => 16/047437 [patent_app_country] => US [patent_app_date] => 2018-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 35 [patent_figures_cnt] => 52 [patent_no_of_words] => 9622 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16047437 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/047437
Regenerative media filtration Jul 26, 2018 Issued
Array ( [id] => 16832921 [patent_doc_number] => 11009163 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-05-18 [patent_title] => Field replaceable fluid element methods and systems for fluidic processors [patent_app_type] => utility [patent_app_number] => 16/044711 [patent_app_country] => US [patent_app_date] => 2018-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 20 [patent_no_of_words] => 8676 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16044711 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/044711
Field replaceable fluid element methods and systems for fluidic processors Jul 24, 2018 Issued
Array ( [id] => 13604837 [patent_doc_number] => 20180353967 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-12-13 [patent_title] => WATER TREATMENT HYDRO-CRUSHER HAVING FILTER CLEANING FUNCTION AND USING FRICTION AND COLLISION OF SOLID PARTICLES MOVING IN VORTEX [patent_app_type] => utility [patent_app_number] => 16/045096 [patent_app_country] => US [patent_app_date] => 2018-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8516 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16045096 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/045096
Water treatment hydro-crusher having filter cleaning function and using friction and collision of solid particles moving in vortex Jul 24, 2018 Issued
Array ( [id] => 13838207 [patent_doc_number] => 20190022588 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-24 [patent_title] => Ion Separator Water Pump [patent_app_type] => utility [patent_app_number] => 16/041808 [patent_app_country] => US [patent_app_date] => 2018-07-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6643 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 298 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16041808 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/041808
Ion separator Jul 21, 2018 Issued
Menu